Question

2.
What is the measure of angle B?
A= 80°
C= 40°​

Answer 1

Answer:

I think so 120⁰ is the answer

Answer 2

Step-by-step explanation:

QUESTION:-

What is the measure of angle B?

What is the measure of angle B?A= 80°C= 40°

${ \boxed{ \huge{ \bf{ given}}}}$

∠A = 80°

∠C = 40°

To Find,

∠B =?

SOLUTION :-

• The sum of the three angles of any triangle is equal to 180 degrees.

________________

∠A + ∠B + ∠C = 180°

=> 80° + ∠B + 40° = 180°

=> ∠B + 120° = 180°

=> ∠B = 180°- 120°

=> ∠B = 60°

_________________________________

Verification:-

∠A + ∠B + ∠C = 180°

L.H.S =∠A + ∠B + ∠C

= 80° +40° + 60°

= 100° +80°

= 180°( R.H.S)

THEREFORE,

L.H.S = R.H.S